Leviticus 20:18

And if a man shall lie with a woman hauing her sickenesse, and shal vncouer her nakednesse: he hath discouered her fountaine, and she hath vncouered the fountaine of her blood: and both of them shall bee cut off from among their people.
- King James Version (1611) - View 1611 Bible Scan

'If {there is} a man who lies with a menstruous woman and uncovers her nakedness, he has laid bare her flow, and she has exposed the flow of her blood; thus both of them shall be cut off from among their people.
- New American Standard Version (1995)

And if a man shall lie with a woman having her sickness, and shall uncover her nakedness; he hath made naked her fountain, and she hath uncovered the fountain of her blood: and both of them shall be cut off from among their people.
- American Standard Version (1901)

And if a man has sex relations with a woman at the time when she is unwell, he has seen her fountain and she has let the fountain of her blood be uncovered, and the two of them are to be cut off from among their people.
- Basic English Bible

If a man lies with a menstruating woman and has sexual relations with her, he has exposed the source of her flow, and she has uncovered the source of her blood. Both of them must be cut off from among their people.
- Berean Standard Bible Bible

And if a man shall lie with a woman in her infirmity, and uncover her nakedness, her flux doth he lay bare, and she hath uncovered the fountain of her blood; and both of them shall be cut off from among their people.
- Darby Bible

If any man lie with a woman in her flowers, and uncover her nakedness, and she open the fountain of her blood, both shall be destroyed out of the midst of their people.
- Douay-Rheims Bible

And if a man shall lie with a woman having her sickness, and shall uncover her nakedness; he hath made naked her fountain, and she hath uncovered the fountain of her blood: and both of them shall be cut off from among their people.
- English Revised Version

'If a man lies with a woman having her monthly period, and uncovers her nakedness; he has made naked her fountain, and she has uncovered the fountain of her blood: and both of them shall be cut off from among their people.
- World English Bible

Wesley's Notes for Leviticus 20:18

20:17 See her nakedness - In this and several of the following verses, uncovering nakedness plainly appears to mean not marriage, but fornication or adultery.

20:20 They shall die childless - Either shall be speedily cut off ere they can have a child by that incestuous conjunction; if this seem a less crime than most of the former incestuous mixtures, and therefore the magistrate forbear to punish it with death; yet they shall either have no children from such an unlawful bed, or their children shall die before them.